Gardner, E. J. (1991). Principles of Genetics (8th ed.). John Wiley & Sons.
Cita Chicago (17th ed.)Gardner, Eldon J. Principles of Genetics. 8th ed. New York: John Wiley & Sons, 1991.
Cita MLA (9th ed.)Gardner, Eldon J. Principles of Genetics. 8th ed. John Wiley & Sons, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.